10031201020 has 24 divisors (see below), whose sum is σ = 21139970544. Its totient is φ = 3998299776.

The previous prime is 10031200997. The next prime is 10031201021. The reversal of 10031201020 is 2010213001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10031200988 and 10031201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880489 + ... + 891808.

It is an arithmetic number, because the mean of its divisors is an integer number (880832106).

Almost surely, 2^10031201020 is an apocalyptic number.

10031201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031201020 is an abundant number, since it is smaller than the sum of its proper divisors (11108769524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10031201020 is a wasteful number, since it uses less digits than its factorization.

10031201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772589 (or 1772587 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10031201020 its reverse (2010213001), we get a palindrome (12041414021).

The spelling of 10031201020 in words is "ten billion, thirty-one million, two hundred one thousand, twenty".